Songfacts®:

• Britney Spears did not have any writing credits on Femme Fatale, for which the singer was criticized in the media. What they forgot was that the songstress co-penned songs on most of her previous albums (at least according to the official credits), including two of her singles, "Everytime" and "Me Against The Music." Britney has also been busy penning tunes for other artists and this collaboration with Gregory Kurstin and Nicole Morier made it onto the final track listing of Selena Gomez & The Scene's When The Sun Goes Down album.
• This tune about a blossoming romance was reportedly written for Spears' Circus album, but failed to make the cut.
• When she was initially given this song, Selena was unaware that Britney had helped to write the tune. "I just heard the song; I fell in love with it," the Wizards of Waverly Place star told MTV News. "They gave it to me, the producers who worked on it, and I came and sang and saw that she had co-written it, so I was very excited."
• Selena told Billboard magazine that the song's lyrics nearly became all too relevant to her. She said: "I love the lyrics saying you're completely in love with someone and you're going to crash into them and get whiplash. The funny thing about that is that I actually did get into an accident two days before I recorded that song. I didn't get whiplash, it wasn't a bad accident but it was really funny."